346 BOTANY. Eab.—8outh Park, on low boggy ground. Beyum pallescens, var.-In this case, the inflorescence is herma¬phrodite, a rare occurrence. Eab.—Bonth Park, in moist places. Beyum c^spiticium, Linn. Eab.—Twin Lakes and South Park, in dry situations; not rare. Beyum aegenteum, Linn. Hab.—Twin Lakes, in dry positions; common. Beyum pseudoteiqueteum, Hedw. jjab.—Twin Lakes, in wet situations. Beyum pseudoteiqueteum, var. compactum. Hab.—Twin Lakes, in bogs. Beyum tuebinatum, Hedw. Hab.—Twin Lakes, on moist ground Beyum tuebinatum, var. latifolium, B. & S. Hab.—Twin Lakes, in similar places. ZiEBiA* DEMISSA, (Horusch) Sclip.—This very interesting plant isknown by its reddish tufts, short radiculose stems. Leaves, the lowerovate-acuminate, nerve ceasing below the point, the upper more pointed,nerve excurrent with long points. Capsule cernuous, incurved, clavate-pyriform, gibbous; mouth small, obhque; inner peristome longer than theteeth. Hab.—Twin Lakes, in fissures of high rocks ; very rare. Mnium affine, var. elatum, B. & S. Hab.—Twin Lakes, under shade in wet places. Mnium seeeatum, Schrad. Hab.—Twin Lakes, by the side of shaded rocks. Amblyodon dealbatus, Beauv. Hab.—South Park, on wet ground. Meesia uliginosa, Hedw. Hab.—Twin Lakes, wet boggy ground. * ZiERiA—Small cEBspites, dichotomously branched; stems radiculose; leaves densely imbricated, ovate, and oblong-aeuminate; nerve excurrent cuspidate; m.argiu entire; reticulation lax. Capsule on a short, sigmatized, horizontal or descending pedicel; operculum small, convex, apiculate, oblique. Annulus broad revoluble. Peristomal teeth narrow, lanceolate; internal membrane narrow; processes narrow, longer than the teeth.